I agree. I think that the mind has to do more to entertain itself when we're bored, so our creativity goes up. I know that as I've been writing a novel, I'll suddenly get creative bursts when I'm bored. However, I don't think that I'll purposely induce boredom in order to have more creative lucids. I've had some pretty exciting dreams despite (or perhaps due to) great excitement in my life. (In fact, I think that when it comes to dreams, I have more vivid, creative, moments in them while I'm having exciting things happen in my life).